or visible debris buildup and fin deformation that compromises static pressure

featuring a precise 35 PSI open (cut-out) and a 60 PSI close (cut-in) setpoint to protect compressors from vacuum damage and loss of charge

F high-limit threshold

as using an incorrect furnace pressure switch can lead to nuisance tripping or unsafe combustion conditions

Technicians should prioritize this genuine Reznor part to ensure the internal heat exchanger surfaces are protected from non-spec flame impingement

Watts 0864945 Repair Kit 30067439-890 or visible debris buildup andThe Watts 0864945 Repair Kit is the professional grade solution for servicing 1 1 2" 25AUB RK water pressure reducing valves. This lead free repair kit, officially designated as RK LF25AUB Z4, is engineered to restore factory spec pressure regulation in high demand plumbing systems. As a veteran preferred direct replacement for 25AUB RK 1 1 2, it addresses common failure points such as fluctuating downstream pressure and bypass leakage caused by